Two-cycle internal combustion engine



Dec. 15, 1964 H. H. ALBlNsoN ETAL 3,161,182

TWO-CYCLE INTERNAL CMBUSTIONy ENGINE Filed Jan. 11. 1960 23 Sheets-Sheetl YA J: .Wiz/y .ZM Z ATTORNEY Dec. 15, 1964 H. H. ALBINSON ETAL3,161,182

Two-CYCLE INTERNA!J coNBUsTIoN ENGINE 25 Sheets-Sheet 2 Filed Jan. l1,1960 @ear e 23h/ame few? n, my

H. H. ALBINSON ETAL TWO-CYCLE INTERNAL COMBUSTION ENGINE Dec.. 15, 196425 Sheets-Sheet 5 Filed Jan. ll, 1960 /N VENTORS Harald M//Ysafg /W MMATTORNEY Dec. 15, 1964 H. H. ALBlNsoN ETAL 3,161,182

Two-CYCLE INTERNAL coNBusTroN ENGINE Filed Jan. 1l, 1960 25 Sheets-Sheet4 TTORNEY Dec. l5, 1964 H. H. ALBlNsoN ETAL 3,151,182

Two-CYCLE INTERNAL, coMBUsTIoN ENGINE Filed Jan. 11, 1960 25Sheets-Sheet 5 Dec. l5, 1964 H. H. ALBlNsoN ETAL 3,161,182

Two-CYCLE INTERNAL coMBusTroN ENGINE 23 Sheets-Sheet 6 Filed Jan. ll.1960 Dec. 15, 1964 H. H. ALBlNsoN ETAL 3,161,182

Two-CYCLE INTERNAL coNBUsTroN ENGINE Filed Jan. ll, 1960 25 Sheets-Sheet7 A,/// .ff/9

AT TORNEY Dec. 15, 1964 H. H. ALBINSON ETAL 3,161,182

Two-CYCLE INTERNAL, coMBusTroN ENGINE 25 Sheets-Sheet 8 Filed Jan. ll,1960 if MME* Dec. 15, 1964 H. H. ALBlNsoN ETAL 3,161,182

TWO-CYCLE INTERNAL COMBUSTION ENGINE 25 Sheets-Sheet. 9

Filed Jan. 11, 1960 Dec. 15, 1964 H. H. ALBlNsoN ETAL TWO-CYCLE INTERNALCOMBUSTION ENGINE Filed Jan. ll, 1960 25 Sheets-Sheet l0 ggg/ /N VE' NTOPS AT TORNE V De- 15, 1954 H. H. ALBlNsoN ETAL 3,161,182

TWO-CYCLE INTERNAL. COMBUSTION ENGINE Filed Jan. l1, 1960 23Sheets-Sheet l1 A TTOP/VE Y Dec. 15, 1964 H. H. ALBINSON ETAL 3,161,182

Two-CYCLE INTERNAL coMBUsToN ENGINE 25 Sheets-SheeI l2 Filed Jan. 11,1960 Dec. 15, 1964 H. H. ALBlNsoN ETAL 3,161,182

TWO-CYCLE INTERNAL COMBUSTION ENGINE Filed Jan. ll, 1960 25 Sheets-Sheetl5 Dec- 15, 1964 H. H. ALBINSON ETAL 3,161,182

TWO-CYCLE INTERNAL COMBUSTION ENGINE Filed Jan. ll, 1960 23 Sheets-Sheet14 may ATTORNEY Dec. 15, 1964- H. H. ALBINSON ETAL 3,161,182

Two-CYCLE INTERNAL coNBUsTIoN ENGINE 23 Sheets-Sheet. l5

Filed Jan. 11, 1960 Dec. l5, 1964 H. H. ALBINSON ETAL 3,161,182

Two-CYCLE INTERNAL. COMBUSTION ENGINE Filed Jan. l1. 1960 23Sheets-Sheet 16 ATTDRNE'Y Dec. 15, 1964 H. H. ALBINSON ETAL TWO-CYCLEINTERNAL COMBUSTION ENGINE Filed Jan. 1l. 1960 23 Sheets-Sheet 17ATTORNEY De- 15, 1964 H. H. ALBlNsoN ETAL 3,161,182

TWO-CYCLE INTERNAL. COMBUSTION ENGINE Filed Jan. ll, 1960 23Sheets-Sheet 18 l, BY f ATTORNEY Dec. 15, 1964 H. H. ALBxNsoN ETAL3,161,182

Two-CYCLE INTERNAL. coNEusTIoN ENGINE Filed Jan. 11, 1960 2ssheets-sheet 19 /NVENTOR'S `ATTORNEY Dec. 15, 1964 H. H. ALBINsoN ETAL.3,161,182

Two-CYCLE INTERNAL coNBusTIoN ENGINE 23 Sheets-Sheet 20 Filed Jan. 1l,1960

1. A TWO-STROKE UNIFLOW SCAVENGED INTERVAL COMBUSTION ENGINE COMPRISINGA CYLINDER BLOCK DEFINING A CRANKCASE WITH TWO ROWS OF CYLINDERSINCLINED THEREFROM A FORMING A CENTRAL SCAVENGING AIR RECEIVER EXTENDINGLONGITUDINALLY BETWEEN SAID CYLINDER ROWS WITH BRANCH PASSAGES EXTENDINGLATERALLY THEREFROM BETWEEN AND AROUND THE SEVERAL CYLINDERS, TWOCYLINDER HEADS MOUNTED ON SAID CYLINDER BLOCK AND COOPERATING WITH THEUPPER ENDS OF EACH OF SAID CYLINDERS TO DEFINE EXPANSIBLE COMBUSTIONCHAMBERS WITH PISTONS RECIPROCABLY MOUNTED IN EACH OF SAID CYLINDERS,EACH OF SAID CYLINDERS HAVING A PLURALITY OF INLET PORTS FORMEDCIRCUMFERENTIALLY THEROF INTERMEDIATE ITS ENDS AND CONTROLLABLE BYRECIPROCATION OF SAID PISTONS TO ADMIT SCAVENGING AIR FROM SAIDLATERALLY EXTENDING PASSAGES TO THE SEVERAL EXPANSIBLE COMBUSTIONCHAMBERS, A CRANKSHAFT SPACEDLY JOURNALED IN SAID CRANKCASE AND HAVING APLURALITY OF CRANKPIN CARRYING THROWS INTERMEDIATE THE SPACED JOURNALINGTHEREOF, SAID CRANKPINS EACH BEING DRIVINGLY CONNECTED TO PISTONS INLATERALLY ADJACENT V''D PAIRS OF SAID CYLINDERS, EACH OF SAID CYLINDERHEADS HAVING EXHAUST PASSAGES THEREIN, OVERHEAD VALVE MEANS CARRIED BYEACH OF SAID HEADS AND OPERABLE TO CONTROL SAID EXHAUST PASSAGES,OVERHEAD FUEL INJECTION MEANS CARRIED BY EACH OF SAID CYLINDER HEADS FORSEQUENTIALLY INTRODUCING AN OIL CHARGE TO EACH OF THE SEVERAL EXPANSIBLECOMBUSTION CHAMBERS, AND TWO CAMSHAFTS JOURNALED IN SAID CYLINDER BLOCKIN SPACED PARALLEL RELATION TO EACH OTHER ADJACENT TO AND INTERMEDIATETHE CYLINDER HEAD MOUNTING UPPER ENDS OF THE SEVERAL CYLINDER ROWS, THEAXES OF SAID CAMSHAFTS AND OF THE CRANKSHAFT OF THE ENGINE DEFININGINTERSECTING PLANES EQIANGULARLY DISPOSED WITH RESPECT TO A PLANE COMMONTO THE AXES OF THE SEVERAL CYLINDERS OF THE ADJACENT CYLINDER ROW AND TOTHE LONGITUDINAL VERTICAL PLANE OF THE ENGINE.